Đồng hồ kiểm soát công suất DM38-240A

Technical Data
DISPLAY TYPE
LCD display
MEASUREMENTS
3-phase 4-wire system
CURRENT MEASUREMENT (TRMS)
CT primary : 5 ~ 8000 A
CT secondary : 5 A
Minimum measurement : 10 mA
Accuracy : 0.5% from 1A to
6A (secondary)
Sustained overload : 6A
VOLTAGE MEASUREMENT (TRMS)
Direct measurement
phase – phase : 120 ~ 415 V AC ± 20%
Direct measurement
phase – neutral : 70 ~ 265 V AC ± 20%
Accuracy : 0.5%
Sustained overload : 300 V AC ( L-N )
: 520 V AC ( L-L )
POwER MEASUREMENT
Real power, apparent power, reactive power
measurement
Measuring updating period : 1 s
Accuracy : 1.0%
POwER FACTOR MEASUREMENT
Accuracy : 1.0%
FREqUENCY MEASUREMENT
Measurement range : 45 ~ 65 Hz
Measurement updating period : 1s
Accuracy : 0.5%
ENERGY ACCURACY
Active (according to IEC 62053-21) : class 1
Reactive (according to IEC 62053-23) : class 2
POwER SUPPLY
Self supplied : 100~240 V AC
Frequency : 50 / 60 Hz
Power consumption : <3 VA
COMMUNICATION
Hardware interface : Isolated RS485
Protocol : Modbus-RTU
Baud rate : 2400, 4800, 9600,
19200, 38400
OPERATING CONDITIONS
Operating temperature : -10˚C ~ +55˚C
Storage Temperature : -20˚C ~ +70˚C
MECHANICAL
Mounting : DIN rail
Approximate weight : 200g